73 lines
2.4 KiB
Markdown
73 lines
2.4 KiB
Markdown
# Build Instructions for Teensy 3.1
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Currently the Teensy 3.1 port of MicroPython builds under Linux and not under Windows.
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The tool chain required for the build can be found at <https://launchpad.net/gcc-arm-embedded>.
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Download the current Linux *.tar.bz2 file. Instructions regarding unpacking the file and moving it to the correct location
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as well as adding the extracted folders to the enviroment variable can be found at
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<http://eliaselectronics.com/stm32f4-tutorials/setting-up-the-stm32f4-arm-development-toolchain/>
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In order to download the firmware image to the teensy, you'll need to use the
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downloader included with TeensyDuino. The following assumes that you have
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TeensyDuino installed and set the ARDUINO environment variable pointing to the
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where Arduino with TeensyDuino is installed.
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```bash
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cd teensy
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ARDUINO=~/arduino-1.0.5 make
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```
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To upload micropython to the Teensy 3.1.
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Press the Program button on the Teensy 3.1
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```bash
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sudo ARDUINO=~/arduino-1.0.5/ make deploy
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```
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Currently, the Python prompt is through the USB serial interface, i.e.
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```bash
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minicom -D /dev/ttyACM0
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```
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## TIPS
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### Install 49-teensy.rules into /etc/udev/rules.d
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If you install the 49-teensy.rules file from http://www.pjrc.com/teensy/49-teensy.rules
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into your ```/etc/udev/rules.d``` folder then you won't need to use sudo:
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```bash
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sudo cp ~/Downloads/49-teensy.rules /etc/udev/rules.d
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sudo udevadm control --reload-rules
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```
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Unplug and replug the teensy board, and then you can use: ```ARDUINO=~/arduino-1.0.5/ make deploy```
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### Create a GNUmakefile to hold your ARDUINO setting.
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Create a file call GNUmakefile (note the lowercase m) in the teensy folder
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with the following contents:
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```make
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$(info Executing GNUmakefile)
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ARDUINO=${HOME}/arduino-1.0.5
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$(info ARDUINO=${ARDUINO})
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include Makefile
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```
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GNUmakefile is not checked into the source code control system, so it will
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retain your settings when updating your source tree. You can also add
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additional Makefile customizations this way.
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### Tips for OSX
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Set the ARDUINO environment variable to the location where Arduino with TeensyDuino is installed.
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```bash
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export ARDUINO=~/Downloads/Arduino.app/Contents/Java/
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```
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Search /dev/ for USB port name, which will be cu.usbmodem followed by a few numbers. The name of the port maybe different depending on the version of OSX.
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To access the Python prompt type:
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```bash
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screen <devicename> 115200
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```
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